A navigator takes a bearing on buoy 'A' at 1000 and cannot obtain a second simultaneous LOP. At 1015 a bearing is taken on lighthouse 'B'. The navigator advances the 1000 LOP along the DR track to 1015 and crosses it with the lighthouse bearing. The resulting position is BEST described as a:

Question

Accepted Answer

B. Running fix — Bowditch Ch. 7 §702 defines a running fix as the position obtained when the first LOP is advanced along the DR track to the time of a second observation and the two are crossed. It is less accurate than a fix from simultaneous LOPs because the advanced LOP carries forward any DR errors accumulated in the interval.

Answer

A. Fix

Answer

C. Dead reckoning position

Answer

D. Estimated position

A navigator takes a bearing on buoy 'A' at 1000 and cannot obtain a second simultaneous LOP. At 1015 a bearing is taken on lighthouse 'B'. The navigator advances the 1000 LOP along the DR track to 1015 and crosses it with the lighthouse bearing. The resulting position is BEST described as a:

More Dead reckoning — DR plot maintenance questions

Start drilling in 30 seconds. Free.